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Finding the Fourth Proportional to 375,388.04, 518,031.42 and 203,303.18

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Solution

The fourth proportional to 375,388.04, 518,031.42 and 203,303.18 is: 280,556.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,388.04 : 518,031.42 = 203,303.18 : x
  2. Step 2: Convert to fraction form
    375,388.04/518,031.42 = 203,303.18/x
  3. Step 3: Cross multiply
    375,388.04x = 518,031.42 × 203,303.18
  4. Step 4: Simplify right side
    375,388.04x = 105,317,435,025.92
  5. Step 5: Solve for x
    x = 105,317,435,025.92/375,388.04
  6. Step 6: Final answer
    x = 280,556.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.